KEJI RIBAO(Science and Technology Daily)Of the world's 1.373 billion hectares of land under cultivation, China has only 100 million hectares or 7 percent. Out of a global population of 5 billion, 1.1...
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KEJI RIBAO(Science and Technology Daily)Of the world's 1.373 billion hectares of land under cultivation, China has only 100 million hectares or 7 percent. Out of a global population of 5 billion, 1.1...